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A physical activity questionnaire for the elderly
Home
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A physical activity questionnaire for the elderly
A physical activity questionnaire for the elderly
LV
Laura E. Voorrips
Laura E. Voorrips
AR
Anita C. J. Ravelli
Anita C. J. Ravelli
PD
Petra C. A. Dongelmans
Petra C. A. Dongelmans
PD
Paul Deurenberg
Paul Deurenberg
WS
Wija A. VAN Staveren
Wija A. VAN Staveren
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1 August 1991
journal article
Published by
Wolters Kluwer Health
in
Medicine & Science in Sports & Exercise
Vol. 23
(8)
,
974???979-9
https://doi.org/10.1249/00005768-199108000-00015
Abstract
Ry creatinine. At rest, elimination in relation to body weight was identical in men and women. During exercise a fivefold decrease in the female and twofold decrease in the male populations were observed. After exercise, caffeine elimination was greater than during the physical trial but remained lower for women than for men. “Total metabolites” excretion showed evidence for a slowing of caffeine catabolism during exercise and a restart of it after exercise. The caffeine content of beverages varies considerably from one country to another, depending on local customs, so that caffeine intake may be highly variable. Our results lead us to query the validity of the upper authorized official limit for urinary caffeine (12 μg·ml−1) in doping controls. The nature of the sporting event, sex, weight, and sampling delay after exercise are all factors that argue against the utilization of a unique standard. ©1991The American College of Sports Medicine...
Keywords
PHYSICAL ACTIVITY
ELDERLY
ADULTS
CLASSIFICATIONS
VALIDATED
ADAPTED
ACTIVITY QUESTIONNAIRE
TERTILE
SPEARMAN'S
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Open Access
Cited by 377 articles